Modeling manufacturing processes with disturbances — Two-stage AL Model Transformation method

The paper discusses modeling and control of discrete manufacturing processes (DMP) with disturbances of various types: machine failures, quality defects, unexpected additional orders etc. A novel intelligent and formal modeling method is presented for DMP with disturbances. It is called Two-Stage AL Model Transformation method (2SALMT method). The method is based on formal model of DMP given by the Algebraic Logical Meta-Model of Multistage Decision Processes (ALMM of MDP), especially Multistage Dynamic Decision Processes (AL-MDDP). Method application is shown herein for IT systems controlling manufacturing processes on both operational and tactical levels. The paper also shows how 2SALMT method can be applied to modeling manufacturing processes in a failure mode.